Vitalii Hrytsiienko
Senior Frontend Developer at Firebolt
Kyiv, Ukraine
Summary
👤
Senior🎓
Top SchoolVitalii Hrytsiienko is a Senior Frontend Developer based in Kyiv with a decade of engineering experience and over five years focused on modern JavaScript stacks like TypeScript, React, Redux, GraphQL, and Node.js. At Firebolt since 2020 he drives frontend delivery while also contributing backend expertise—most notably enhancing the Firebolt driver in the popular open-source Cube project to improve connectivity, time zone handling, boolean casting, and engine autostart. He combines a strong sense of ownership and user-centered thinking with practical backend knowledge, enabling smoother integrations between UI and data layers. His background in electrical and electronics engineering gives him a systems-oriented perspective that helps when debugging complex cross-stack issues. Colleagues praise his persistent positive attitude and passion for technology, which he channels into shipping reliable, user-focused features. He brings both hands-on implementation skills and a knack for solving edge-case interoperability problems that many frontend engineers overlook.
10 years of coding experience
4 years of employment as a software developer
Igor Sikorsky Kyiv Polytechnic Institute
Github Skills (10)
sql10
back-end-development10
analytics10
database9
databases9
typescripts8
typescript8
typescript-types8
cloud-infrastructure5
rust4
Programming languages (3)
Github contributions (5)
cube-js/cube
May 2022 - Sep 2022
📊 Cube’s universal semantic layer platform is the next evolution of OLAP technology for AI, BI, spreadsheets, and embedded analytics
Role in this project:
Back-end Developer
Back-end DeveloperContributions:4 reviews, 6 commits, 5 PRs in 3 months
Contributions summary:Vitalii primarily contributed to the development and enhancement of the Firebolt driver within the cube-js project. Their work focused on adding Firebolt driver functionality, including the ability to connect, query, and stream data from Firebolt databases. The user also addressed specific issues related to time zone support and boolean parameter casting, enhancing the driver's functionality and compatibility. Furthermore, the user implemented an engine autostart feature to ensure the Firebolt engine is running when needed.
cubeanalyticsdataathenachart
Jeseeq/paritet
Nov 2015 - Mar 2016
Contributions:154 commits, 4 pushes, 1 branch in 4 months
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